CXUS51 KLWX 040004 CLMBWI CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 802 PM EDT FRI MAY 3 2013 ................................... ...THE BALTIMORE MD CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1870 TO 2013 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 94 04/25/1960 04/23/1960 04/20/1941 LOW 20 04/04/1965 HIGHEST 91 04/10 85 6 LOWEST 25 04/04 29 -4 AVG. MAXIMUM 66.2 64.6 1.6 67.2 AVG. MINIMUM 44.5 42.7 1.8 43.3 MEAN 55.3 53.7 1.6 DAYS MAX >= 90 1 0.2 0.8 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 3 2.8 0.2 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 8.70 1889 MINIMUM 0.39 1985 TOTALS 2.20 3.19 -0.99 1.99 DAILY AVG. 0.07 0.11 -0.04 DAYS >= .01 8 10.8 -2.8 DAYS >= .10 5 6.3 -1.3 DAYS >= .50 2 2.4 -0.4 DAYS >= 1.00 0 0.6 -0.6 GREATEST 24 HR. TOTAL 0.86 04/19 TO 04/20 SNOWFALL (INCHES) RECORDS TOTAL 9.4 1924 TOTALS T T 0.0 SINCE 7/1 8.0 20.1 -12.1 SNOWDEPTH AVG. 0 DAYS >= TRACE 1 0.1 0.9 DAYS >= 1.0 0 0.0 0.0 GREATEST SNOW DEPTH 0 24 HR TOTAL T DEGREE_DAYS HEATING TOTAL 309 354 -45 305 SINCE 7/1 4350 4615 -265 3559 COOLING TOTAL 26 13 13 22 SINCE 1/1 26 14 12 32 .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.2 HIGHEST WIND SPEED/DIRECTION 28/280 DATE 04/01 HIGHEST GUST SPEED/DIRECTION 40/310 DATE 04/24 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 5 NUMBER OF DAYS PC 16 NUMBER OF DAYS CLOUDY 9 AVERAGE RH (PERCENT) 61 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 4 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 1 FOG 12 FOG W/VIS <= 1/4 MILE 0 HAZE 6 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && AFTER TWO STRAIGHT MONTHS OF BELOW NORMAL TEMPERATURES...THE MONTHLY AVERAGE TEMPERATURE FOR APRIL WAS ABOVE THE 1981-2010 NORMAL. THE PAST SIX YEARS HAVE FEATURED ABOVE NORMAL TEMPERATURES IN APRIL. HOWEVER...THE MONTH ENDED ON A COOL NOTE AS 10 OF THE LAST 11 DAYS RECORDED BELOW NORMAL AVERAGE TEMPERATURES. A PERIOD OF WINTER-LIKE COLD OCCURRED DURING THE 2ND-4TH WHEN THE LOW TEMPERATURE WAS IN THE 20S EACH DAY. IT WAS ONLY THE FIFTH YEAR ON RECORD THAT HAD THREE OR MORE CONSECUTIVE DAYS WITH A LOW TEMPERATURE BELOW 30 DEGREES IN APRIL AND THE FIRST SUCH OCCURRENCE SINCE 5-8 APRIL 1982. THE LOW TEMPERATURE OF 27 DEGREES ON THE 3RD TIED THE DAILY RECORD LOW FOR BALTIMORE THAT WAS PREVIOUSLY SET IN 1965 AND 1985. WHILE THE LOW TEMPERATURE OF 25 DEGREES ON THE 4TH DID NOT BREAK A DAILY RECORD LOW...IT WAS THE LOWEST TEMPERATURE DURING APRIL IN 21 YEARS (25 DEGREES ON 4 APRIL 1992). THE HIGH TEMPERATURE OF 91 DEGREES ON THE 10TH SET A DAILY RECORD HIGH FOR BALTIMORE. IT BROKE THE OLD RECORD OF 89 SET IN 1922. PRECIPITATION FOR THE MONTH WAS BELOW NORMAL. IT WAS THE FIRST APRIL SINCE 2006 WITHOUT AT LEAST ONE INCH OF RAINFALL ON ANY CALENDAR DAY DURING APRIL. A TRACE OF SLEET WAS REPORTED ON THE EVENING OF THE 4TH BEFORE PRECIPITATION QUICKLY CHANGED OVER TO RAIN. $$ JRK/SMZ